Printing-press.



3 SMITH & o w. HAMMERQUIST.

PRlNTING PRESS.

APPLICATION FILED APR.22. I9l2.

151623665, Patented Jim. 11, 1916.

4 SHEETS -SHEET 1.

B U/thugs Ses Imvem' Kim as l/vam, 3111 11 117 Oscar wflam'unergmisi S.SMITH 8L0. W. HAMMERQUIST. PRINTING PRESS. APPLICATION men APR.22, 1912Inveniors Swan, SE11 127E171,

Oscar jftin'd711erq M11575 Mli/Eiwe s'ses Patent-ed Jan. 11, 1916.

4 SHEETS-SHEET 3- 8. SMITH & 0. W. HAMMERQUIST. PRINTING PRESS.APPLICATKON FlLED APR.22. 1912. 1,167,665.,

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J6 S m 3?. WW mm 51 n ma M m c s a 4 1 4. s a a I I r hu 3. SMITH & 0.w'. HAMMERQUI'ST.

PRINTING PRESS.

APPUCATION FILED APR.22, 1912.

Patented Jan. 11, 1916.

4 SHEETS-SHEET 4- v r mo e we P s me t idler-info fisfie laminae;

SWAN SMITH AND QSCAR W. HAMMERQUIST, OF RAMSEY CUUNT". ASSIGNORS, BYDIRECT ANY MESNE ASSIGNMENTS. T0 OSTEI re .tl

BEINNESOTA.

LIND PRINTING PRESS AND IXEANUFACTURING COMPANY, DE ST. YEAUL,liIINlKIEl-ZGTA, A GUI- Pt} P'ttIN'ZfING-PRESS.

Application filed April 22,

To all zit/m it may concern:-

be it known that we, SWAN SMITH and Oscivn ll". llAll'MERQUlS'l,citizens of the United States, residing in Ramsey county, in the Stateof iv'linnesota, have invented new and useful Improvements inPrinting-Presses, of which the following is a specification.

Our invention relates to printing presses of the cylinder ie.

its object is provide a simple, durable and eflicient pr: s having areciprocating impression cylinder and a movable bed adapted to coactwith the impression cylinder.

A. further object is to provide in a printing press of this class meansfor manually dropping the bed and discontinuing the operation of theinking mechanism irrespective of the movement or position of theimpressicn cylinder.

A further object is to provide means for insuring a perfectregister-between the impression cylinder and the bed.

In the drawings Figure 1 is a side elevation of our improved press; Fig.2 is an end elevation. of the same with the feeding platform removed;Fig. 3 is a sectional view taken on the-line of Fig. 2 and Fig. 1- is adetail sectional view showing the cylinder and bed with its operatingmechanism.

Referring to the drawings, we have used the reference numeral 10 toindicate the press frame, 11 the impression cylinder, 12 the bed, 13 thefeeding platform and 1a the delivery platform.

The in'ipression cylinder 11 is rotated continuoi'isly and is adapted tomove backward and forward above the bed 12 from the feeding platform 13,where it rests to receive a sheet of paper to the delivery platform 14,where it again rests to dischar e the printed sheet. The carriagemembers 15 are movable on the slides 16 of the frame 10 and formbearings in which the ends of the cylinder supporting shaft 11 arejournaled. The cam shaft 17 in the frame 10 is provided with a doublefaced cam 18 and is operatively connected through. the gear wheels 19and "20 with the power pulley 21. A segment provided at each end with acam roller 23, is fixed to the rock shaft 24: on he frame 10. Each faceof the double cam 4' 1- A 1 Patch ten Jan. ll, Natal.

1912. Serial No. 692,421.

18 engages a roller 23 and when rotated rocks the shaft backward andforward. A pair of upwardly extended levers are fixed at one end to therock shaft 24:, each lever being pivotally attached at its upper end toa connecting rod 25 which is also pivotally attached to one of thecarriage members 15. Thefaces of the cam 18 are angularly spaced apart,each comprising a neutral low portion, an active outwardly extendingpart, a neutral high portion and an inwardly extending part. The activeportions cause opposite strokes of the cylinder 11 and the neutralportions retain said cylinder for a predetermined interval at the end ofeach stroke.

The cam shaft 17, counter shaft 27 and shaft 28 are respectivelyprovided with meshing spur gears 29, 30, and 31 and the shaft 33,journaled in the frame 10, is driven. by the shaft 28 through thebeveled gear wheels 3% and 35 located respectively on the shafts 28 andThe cylinder supporting shaft 11 is driven continuously from said shaft33 by means of the spiral gears 36 and 37. The gear is fixed on theshaft 11 and its meshing gear 37 is feathered on the shaft Said gear 37is retained in mesh with its companion gear 36 and is shifted on theshaft 33 by the arms 38 of the bracket39 on the carriage member 15adjacent to. said shaft 33.

To insure perfect registry between the inipression cylinder 11 and thetype form in the bed wehave fitted the cylinder 11 with a gear l0 andthe bed 12 with a rack. at]. adapted to mesh with said gear when thecylinder 11 is in contact with the form.

The bed 12 slidable on its posts 12 of the frame 10 is normally elevatedwhen the cylinder 11 moves forward, thus causing said cylinder to bearagainst the form contained in said bed and is lowered to prevent contactbetween said form and cylinder as the latter moves back. Slidablejournal boxes or bear ings beneath the bed 12 receive the eccentricshafts 43 which are journaled at their ends in frame 10. is provided.with an arm said arms be ing connected by a link ii? to synchronize themovement between. said shafts. The lever l6 is loosely mounted at oneend on Each of these shafts one of the shafts 43 and is provided with acurved slot 47 to receive the bolt 48 by means of which said lever is.adjustably secured to one of thearms 44. The free end of the lever 46is connected by the link 46 to the free end of the cam lever 49, whichis pivotally mounted at its other end on the frame 10. This lever isprovided with a cam roller 50 arranged in engagement with the inside cam51 on the counter shaft 27, and is intermittently oscillated by saidcam. Said lever 49 operates through the link 46, lever 46 and arms 44 torock the eccentric shafts '43, thuselevating the bed 12 on the forwardstroke of the cylinder and lowering it on the return stroke of saidcylinder.

The shaft 28'is provided with an inking roller 52. This roller issupplied with ink from the ductor roller 53, which gathers its supplyfrom the fountain roller 54. Ink distributing rollers 55 on' the frame10 are provided for said roller 52. The form rollers 56 on the carriagemembers 15 contact with the roller 52 at the end of their forward stroketo receive a supply of ink therefrom. Ve arrange and operate the ductorand fountain rollers as follows: The ductor roller 53 is mounted in apairof arms 57 extending from the shaft 58 j ournaled in the frame 10.The lever 59 on thisshaft is pivw otally connected through the yoke 60with the eccentric stud 61 on the beveled gear Wheel 34 and is operatedthereby to swing' municated through said link, lever and.

ratchet to rotate the fountain roller 54 and supply the same with ink.

During the operation of a printing press it is often desirable toprevent contact between the form andimpression cylinder during one ormore strokes of the latter, and 7 it is then of course desirable todiscontinue the action of the inking mechamsm. WVe

- have provided the following mechanism whereby the bed may be instantlylowered and the inking operation automatically discontinued. The freeend of the lever 46 on one of the shafts 43 isprovided with the slideway69 terminating at one end in the socket 70. The connection between thelink 46 v and this lever consists of a pin 71 in said link adapted torest in said socket 70. In the normal operation of the press this pin isretained in said socket and the cam lever 49 rocks the eccentric shafts43 through the link 46, lever 46 and arms 44 as above described. ohavesupplied the guide bar 72-with a pivotal and slidable mounting atone end on the frame 10 and have arranged the bell crank '73 inoperative connection with said bar and the foot lever 74 on said frame.A slight movement of this lever 74 raises the guide bar which removesthe pin 71 from the socket 70. The displacement of this pinchanges thepivotal connection between the lever-46and the link 46 to a slidable oneandpermits the spring 75 between the bed 12 and link 45 to act and movethe arms 44 to position lowering the bed regardless of the position oroperation of the cam lever 49. In shifting this guide bar 72 to positionreleasing the pin 71 from its socket 70, said bar is also moved forwardand extended into the path of the arm 76 on the shaft 58 to prevent therotation of said shaft and the engagement of the ductor roller 53 withthe fountain roller 54. As above described, the ductor roller is thusswung from the fountain roller 54.to the inking roller 52 by theconnecting mechanism between the shaft 28 and the beveled gear-Wheel 34,and is then returned by thespring 63. The guide bar '72 prevents themovement of the shaft 58 when turned, by the action of said spring. .WVehave provided the arm 76 with a spring dog 77 movable in one direction.This resilient dog is intended to prevent damage to the guide.

bar 72 in case said bar should be extended into the path of the arm 76,as the ductor roller 53 passes from the fountain roller 54 to the inkingroller 'Means are also pres cut for receiving sheets of paper from thecylinder 11 and moving the same to. the delivery platform 14. The rockshaft '7 8 is supported on the frame 10 and provided witha lever 79which is supplied with a connecting rod 80 attached to the spur gear 31on theshaft 28. Swinging arms 81 fixed on this shaft, carry rods 82 and83 adjacent to each other. The rod 82 is adjustably secured in saidarms8'1 while the second rod 83 is loosely mounted therein. The rods 82and 83 are respectively provided with a plurality of co-acting jaws 84and 85 and the upper rod 83 is also provided with a spring actuatedroller arm 86 adapted to yieldingly secure said rod in position andnormally hold the pairs ofjaw s together. The arms 81 are oscillatedbackward and forward over the delivery platform. At the end of. theirbackward stroke the roller arm 86 engages the cam surface 87, and, thejaws 85 are opened to receive a sheet of paper as the same is strippedfrom the cylinpler by the fingers 88. arms 81 the roller arm 86 isdisengaged from the cam surface 87 and the jaws 84 and 85. grip andcarry the sheet forward over the delivery platform. Near the end of thereroller '86 Q engages: the cam surface .89 to" open the jaw; members;85

and the stop fingers fill-engage and release the sheet from said j aws,saidi sheet being then free to fall into its proper position-onthedelivery platform., 1

-= In:-operation,'- sheets-of paper are successively fedh-to theimpression;..cylinder 11,

which iseprovided with -ordinary grips 91 (diagrammatically illustratedinYF-ig. 2) and a'ssociated :eperating{mechanismv This cyliiideri passesfOWeI' the bed l2 and delivers the pri ted sheets to the j .delivery -jaws '84 and 85m T hesejaws carry said sheets to their proper positionover the delivery platform 14 and, release the 1 same in such,position.--

operation is thereby di continued; 1

\Vhat we claim as our invention and desire to protect by Letters Patent,is:

1. Ina printing press, the combination of a frame, a bedon said frame,an impression cylinderfor said bed, means for engaging said bed andcylinder on theforward stroke of the latter, power driven means forconstantly rotatmg saidcyllnder'in one direc tion'and power driven meansfor intermittently" reciprocating-the cylinder and for synchronizing,its reciprocating movement with respect to the rotation thereof-wherebysaid cylinder is held at" the ends of its strokes to permit the rotationof the same to positions for'receiving and discharging sheets ofpaper-and for registering said cylinder and bed on the forward stroke of"former.

" a: printing press, the combination of a",fffr'ame,an' mpressioncylinder on the frame;'1neans for intermittently reciprocating andcontinuously rotat ng said cylinder, a"'mova ble bed'onsard frame, poweroperv: atedmeans for normally elevating the bed during the "forwardstroke of the cylinder and 'for lowering' saidbed during the return ofsaid cylinder, and means for I manually lowering ,and discontinuing themovement OfSai-db -f a y In a printingipress, the combination vofa-frame, a bed said frame, impression cylinder for said bed, mechanismfor-[intermittently engag1ng said bed and cylinder,

means forQco-ntinuo-usly rotating said cylin der andgseparate' means forrec procating said ,cyl inderfin a straight, path and for hold i ng g;vthe same at the beginning and end of, the printing; stroke, wherebyduring the pause an reciprocation at the} beginning of a stroke a sheetmay be fed to the cylinder,

while rotating, and carried a substantial distance to printing positionand during the pause reciprocation the end of a stroke thesheet may bewithdrawn, from printing position and ejected fromthe press byv saidrotating cylinder.

.4. In a printing a frame, a bed movable on said frame, an impressioncylinder for said bed, means for continuously rotating said cylinder andfor intermittently reciprocating the same on said frame and means forraising and lowering to that of said cylinder, resilient means tendingto'lower the bed andmanually operated means for discontinuing theoperation of the ductor roller and rendering said first mentioned meansinoperative whereby the action of said resilient means is permittedto'instantly lower and prevent the movement of said bed.

' 6'."In a printing press, the combination of a frame, carriage membersslidable horizontally on said frame, an impression cylinder journaled insaid carriage members, a power driven cam shaft on the frame, a cam onsaid shaft, a rock shaft on the frame, a segment on said shaft inoperative connection" with said cam, levers on said rock shaft, rodspivotally connecting said levers and carriage members and a verticallymovable bed on said frame.

7, In a printing press, the combination of a frame, an impressioncylinder revoluble in and s'lidably mounted on said frame, means forreciprocating said cylinder, eccentric shafts in the frame, a-bedmounted on said shafts, alever on each of said shafts, a connecting linkbetween said levers, a spring between said bed and link adapted to movethe levers, one of said'levers having a slide therein terminating at oneend in a socket, a power shaft on the frame, an in side cam on saidpower shaft,a"cam lever pivoted at one end on the frame and in operativeconnection with said cam, a link pivotally connected at one end to thefree endfof said cam lever and at its other end 1 provided with 1 pm,said pin being adapted to normallyrest insaid socket and form aconnection bet'weensaid link and said lever having the slide, wherebyupon movement of said cam lever, the leverson said accentric shafts areoscillated and the bed raised press, the. combination of and lowered, aguide barpivotally mounted H at one end on the frame, a foot lever onsald frame and a bell crank in operative connection with said foot leverand guide bar. said guide bar being adapted to move said pin from saidsocket and retain the same in said slide.

' ing said cylinder, eccentric shafts journaled in the frame, connectingmeans between the shafts, a bed mounted on said shafts, a lever on oneof the shafts, a power shaft on the frame, an inside cam on said shaft,ra cam lever pivoted at one end on the frame and in operative connectionwith said cam, and a link pivotally connected at one end to the free endof said cam lever and at its other end to said first mentioned lever.

9. In a printing press, the combination of a frame, an impressioncylinder revoluble in and slidably mounted on said frame, means .forreciprocating said cylinder, eccentric shafts in the frame, a bedmounted on said shafts, .a lever on one of said shafts having a slidetherein and terminating at one end in a socket, a power shaft on theframe, an inside cam on said power shaft, a cam lever pivoted at oneendon the frame and in operative connection with said cam, a linkpivotally connected at one end to the free end of said cam lever and atits other end provided with a pin, said ,pin being adapted -to norniallyrest in said socket and form a connection between said link and leverwhereby upon movement of said cam lever the first mentioned lever isoscillated and the bed raised and lowered, a guide bar pivotally mountedat one end on the frame, a foot lever on said frame and a bell crank inoperativeconnection with said fo'ot'lever and guide bar, said guide barbeing adapted to move-said pin from said socket and retain the samein'said slide.

10. In a:;printing' press, the combination of a frame,an impressioncylinder revoluble in and slidably, mounted on said frame, means forcontinuously revolving and for reciprocating said cylinder, eccentricshafts journaled in the frame, a vertically movable bed mounted on saidshafts, an arm on each shaft, a connecting link pivotally attached tothe ends of said arms to synchronize the movement of said shafts, alever on one of the shafts and means for oscillating the same to turnsaid shafts and thereby raise and lower said bed.

11. In a printing press, the combination of a frame, an impressioncylinder revoluble in and slidably mounted on said frame, a power shaft,means in operative connection with said shaft for reciprocating saidcylinder, gearing connecting said shaft and cylinder for continuouslyrotating the latter, eccentric shafts journaled in the frame, a bedmounted on said shafts, an arm on each of sa-id- 'shafts, a connectinglink pivotally vof a frame, an impression cylinder revoluble in andslidably mounted on said frame, means for reciprocating sald cylinder,ec-

centric shafts 'journaled in the frame, a bed,

vertical guides for said bed, bearings on said shafts slidablehorizontally beneath said bed, and forming a mounting therefor, an armon each of said shafts, a connecting link pivotally attached to the endsof said arms, a lever on one, of the shafts, and means for oscillatingthe same to turn said shafts and thereby raise and lower said bed.

l3. In a printing press, the combination of a frame, an'impressioncylinder revoluble in and" slidably mounted onfsaid frame, means forreciprocating said cylinder, ec-

centric shafts journaled in the frame, a bed mounted on said shafts,vertical guides for said bed, an arm on each of said shafts, aconnecting link pivotally attached to the .ends of said arms, a lever onone of the shafts, and means, for oscillating the" same to turn saidshafts and thereby raiseand lower said bed.

14."In a printing press, the combination of a frame, an impressioncylinder revoluble in and slidably mounted on, said frame, means forreciprocating said cylinder, eccen-. trio shafts in the frame, bearingson said shafts, a bed mounted on said bearings,'a lever on one of saidshafts having a slide therein and terminating at one end in a socket, apower shaft on the frame, an "inside cam on said shaft, a cam leverpivoted at one end on the frame and in operative connection with saidcam, a link pivotally connected at one end to the free end'of .said

cam lever and at its other end provided with "at one end' on the frame,a foot lever on said frame, and a bellcrank. in operative connectionwith said foot lever and guide bar, said guide bar being adapted to movesaid pin from said socket and retain the same in said slide.

15. In a printing press, the combination of a frame, animpressioncylinder revoluble in and shdabl} mounted on s'ald frame,means for reciprocating said cyl1nder,'eecentric shafts in the frame, anarm on each of said shafts, a connectingfilink between said arms, tosynchronize the movement of gsaid menses with sai'd a m'fi a' inkpi-votally connected at on e'fen to-the ,free end of said cam lever and"itsaotheriend" rovided with a pin, said pin-being adapted to normallyrest in said socket and form a connection between said link and leverwhereby upon movement of said cam lever the first mentioned lever isoscillated'andithe bed raised and lowered, a guide-bar pivota llymounted at one end on the fram'eifa foot lever on said frame, and a bell*crankiin operative connection with said foot lever anduguide bar, saidguide bar being adapted to"? 11103'6 said pin from. said socketand-retain? the same in said slide.

16;In.a printing press, the combination of a frame, an impressioncylinder revoluble in and slida'bly mounted on said frame, means forreciprocating said cylinder, eccentric. shaftssi'nitheframe, an arm oneach of said shafts," ai connecting link between said arms,a=bedi1nounted on said shafts, a lever on one of said shafts having aslide therein and terminatingxat one end in a socket, meansforadjustably connecting said lever with one of' sai'd arms, a powershaft on. the frame, anin'sideicam onsa'id shaft,.a camlever-pivotedatone endon the frame and in operative connection with saidcam, a link pivotally connected at one end to the free end of said cam*leverand at its other end provided with a pin, said pin being adaptedto normally rest in said socket and form a connection between said linkand lever whereby upon movement of said cam'lever,

the first mentioned lever is oscillated and the.

bed raised andlowered, a guide bar pivotally'mo'unted at one end on theframe, a foot lever on said frame, and a bell crank in operativeconnection with said foot lever and guide bar, said guide bar beingadapted to move said pin from said socket and retain the same in saidslide.

17. In a printing press, the combination of a frame, an impressioncylinder revoluble in and slidably mounted on said frame, means forreciprocating said cylinder, a pair of eccentric shafts in the frame,arms on said shafts, a connecting link between said arms, a bed mountedon said shafts, a lever on one of said shafts having a slide therein andterminating at one end in a socket, a power shaft on the frame, aninside cam on said shaft, a cam lever pivoted at one end on the frameand in operative connection with said cam, a link pivotally connected atone end to the free end of said cam lever and at its other end providedwith a pin,

said pin being adapted to normally rest in said socket and form aconnection between i said link and lever whereby upon movement of saidcam lever the first mentioned lever is oscillated and the bed raised andlowered, a guide bar pivotally mounted at one end on the frame, a footlever on said frame, a bell crank in operative connection with said footlever and guide bar, said guide bar being adapted to move said pin fromsaid socket and retain the same in said slide and a spring between saidconnecting link and bed for turning said eccentric shafts to lower thebed when said pin is removed from its socket.

18. In a printing press, the combination of a frame. an'impressioncylinder revoluble in and slidably mounted on said frame, means forreciprocating said cylinder, a pair of eccentric shafts in the frame,arms on said shafts. a connecting link between said arms, a bed mountedon said shafts,- a lever on one of said shafts having a slide thereinand terminating at one end in a socket, a power shaft on the frame, aninside cam 011 said shaft,a cam lever pivoted at one end on the frameand in operative connection with saidcam, a link pivot-ally connected atone end to the free end of said cam lever and at its other end providedwith a pin, said pin being adapted to normally rest in said socket andform a connection between said link and lever whereby upon movementofsaid cam lever the first mentioned lever is oscillated and the bedraised and lowered, an inking roller on the frame, a shaft revoluble inthe frame, a pair, of supporting arms on said shaft, a ductor rollercarried by said arms, means for swinging said roller back and forthbetween the inking and fountain rollers, an arm on said last mentionedshaft, a guide bar pivotally mounted at one end on the frame, a footlever on said frame, a bell crank in operative connection with said footlever and guide bar, said guide bar being adapted to move said pin fromsaid socket and obstruct the movement of said arm to prevent contactbetween the ductor and fountain rollers.

19. In a printing press, the combination of aframe, an impressioncylinder on said frame, a bed on the frame, means for continuouslyrotating said cylinder, a power driven cam in operative connection therewith for intermittently reciprocating said cylinder, said cam havingtwosurfaces, each comprising an outwardly extending active portion to movethe cylinder in one direction, an inwardly extending portion to permitthe return of the cylinder and neutral circular surfaces, joining saidportions, for holding said cylinder against reciprocation at the end ofits stroke to permit the rotation of the same to a position forreceiving and discharging sheets of paper.

20'. In a printingpress, the combination of termittently reciprocatingimpression cylinder on said frame, a bed on the frame, means fornormally elevating the bed during one stroke of the cylinder and forlowering said bed on the return stroke of said cylinder, an inkingroller on the frame, distributing rollers for said inking roller, afountain roller adjacent to the inking roller, a ductor roller movablebetween the inking and fountain rollers, means for manually lowering anddiscontinuing the movement of said bed and for concurrently preventingthe engagement of the ductor roller with said fountain roller.

21. In a printing press, the combination of a frame, a continuouslyrevoluble and intermittently reciprocating impression cylinder on saidframe, a bed on the frame, means for normally elevating the bed duringone stroke of the cylinder and for lowering said bed on the returnstrokeof said cylinder, a power driven shaft, an inking roller on said shaft,distributing rollers for said inking roller, a fountain roller adjacentto the inking roller, a. second'shaft revoluble on the frame, arms onsaid shaft, a ductor roller carried by said arms, means for swingingsaid roller from the inking roller to the fountain, roller, and meansfor manually lowering and discontinuing the movement of said bed and forpreventing the engagement of the ductor roller with said fountainroller.

22. In a printing press, the combination of a frame, an impressioncylinder revoluble in andslidably mounted on said frame, means forreciprocating said cylinder, a bed on the frame, a power driven shaftarranged transversely to said cylinder, a spiral gear on the cylinderand a second spiral gear feathered on said shaft and secured in meshwith said first mentioned gear.

28. In a printing press, the combination of a frame, an impressioncylinder revoluble in and slidably mounted on said frame, means forreciprocating said cylinder, a bed movable vertically on the frame, apower driven shaft, a gear feathered-on said shaft, and a gear on saidcylinder in meshwith said last mentioned gear.

2%. In a printing press, the combination of a frame, an impressioncylinder on the frame, means for continuously rotating andintermittently reciprocating said cylinder, a gear on the cylinder, abed on the frame, a rack on said bed, means for raising said bed andmeshing said gear with said rack during one stroke of the cylinder, andfor lowering the bed and preventing said rack from meshing with saidgear during the return stroke of said cylinder. i

25. In a printing press, the combination of a frame, carriage membersslidable on said frame, a shaft journaled in said members, a gear onsaid shaft, an impression cylinder mounted on the shaft, means forintermittently reciprocating said cylinder, a bed on the 'frame, a powershaft on the frame, a gear feathered on said power shaft and in meshwith said first mentioned gear.

26. In a printing press, the combination of a frame, carriage membersslidable on said frame, a shaft journaled in said mem bers, animpression cylinder mounted on said shaft, gear wheels on the shaft,means for reciprocating said cylinder, a bed movable vertically on theframe, a rack on said bed adapted to mesh with one of said gear wheels,apower shaft on the frame, a gear feathered on said shaft 'and adaptedto mesh with the other gear on said cylinder, and a bracket on one ofsaid carriage members for shifting the feathered gear on said powershaft and for retaining the same in mesh with its companion gear.

In testimony whereof, we have signed our names to this specification inthe presence of two subscribing witnesses.

/ SWAN SMITH.

OSCAR W. HAMMERQUIST.

Witnesses:

MOE BEAMER, F. C. OASWELL.

